324642420 has 36 divisors (see below), whose sum is σ = 984749220. Its totient is φ = 86571264.

The previous prime is 324642419. The next prime is 324642449. The reversal of 324642420 is 24246423.

It can be written as a sum of positive squares in 2 ways, for example, as 184362084 + 140280336 = 13578^2 + 11844^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 901605 + ... + 901964.

It is an arithmetic number, because the mean of its divisors is an integer number (27354145).

Almost surely, 2^324642420 is an apocalyptic number.

324642420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

324642420 is an abundant number, since it is smaller than the sum of its proper divisors (660106800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

324642420 is a wasteful number, since it uses less digits than its factorization.

324642420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803584 (or 1803579 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 324642420 is about 18017.8361630913. The cubic root of 324642420 is about 687.2821886319.

Adding to 324642420 its reverse (24246423), we get a palindrome (348888843).

The spelling of 324642420 in words is "three hundred twenty-four million, six hundred forty-two thousand, four hundred twenty".